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A232977 G.f.: Prod_{k=1..oo} 1/(1-(4*x)^k)^(k/2). 1
1, 2, 22, 148, 1126, 6780, 49020, 290664, 1945734, 11786988, 74564884, 445398168, 2767974620, 16299877464, 98372647992, 577710929872, 3417417696966, 19822614160204, 115774907274660, 664999142005688, 3833211645341172, 21844173121980168, 124494179613063496, 703535711892561840, 3974352552423163548 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Substitute 4x for x in g.f. mentioned in A232976.

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..500

CROSSREFS

Cf. A232976/A046161, A000219.

Sequence in context: A067057 A202738 A286778 * A282819 A123960 A265864

Adjacent sequences:  A232974 A232975 A232976 * A232978 A232979 A232980

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Dec 07 2013

STATUS

approved

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Last modified March 21 20:33 EDT 2019. Contains 321382 sequences. (Running on oeis4.)